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Argon with the symbol Ar and atomic number 18 in the periodic table of the elements. The name "argon" is derived from the Greek word with meaning "lazy" or "inactive", as a reference to the fact that the element undergoes almost no chemical reactions.
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Argon with the symbol Ar and atomic number 18 in the periodic table of the elements. The name "argon" is derived from the Greek word with meaning "lazy" or "inactive", as a reference to the fact that the element undergoes almost no chemical reactions.
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